Now the Microsoft Office 2010 users can download Microsoft Office 2010 SP1 for free. The software upgrade contains product fixes for stability, performance, and security and includes all the public updates through June 2011, and all cumulative updates through April 2011.

Here is a short list of the most promising new features, fixes and updates.

• Stability, Performance and backward compatibility of Excel 2010 has been improved.
• Office 365 support has been added to Outlook 2010
• PowerPoint Viewer is now included when selecting the Package for CD option
• Fixes the following error message in Word 2010: Microsoft Office Word has encountered a problem and needs to close.
• Fixes Word co-authoring issues and conflicts.
• Open OneNote notebooks from Windows Live SkyDrive
• OneNote synchronization improvements with SharePoint and Windows Live SkyDrive.

Check the complete list here

Download Microsoft Office 2010 SP1

Microsoft Office users can download the service pack from Windows Update, Microsoft Update or via Microsoft’s Download Center.

• Download Microsoft Office 2010 Service Pack 1 (64-bit) – 439MB
• Download Microsoft Office 2010 Service Pack 1 (32-bit) – 361MB

Simply download the .exe file and click to install and upgrade Office.

Note: This free update will only work for computers which have a genuine version of Microsoft Office 2010 already installed. Supported Operating Systems include Windows 7, Windows Server 2003, Windows Vista, Windows XP.

If you dont have Office, you can download 60-day Free Trial of Office 2010 and see how it works for you, and then buy it.